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In air-conditioning systems, streams of cold and warm air are mixed to get air with the right temperature. Consider a mixing chamber into which cold air enters at 8C and 100 kPa at a rate of 0.55 m^3 /s and warm air enters at 300C and 100 kPa. The ratio of mass flow rates of warm to cold air streams is 1.6. Using variable specific heats, determine the mixture temperature leaving the mixing chamber.
some hypothetical metal has the simple cubic crystal structure i.e. atoms positioned at each of the eight corners with
given the following oxides b2o3 mgo zro2 and tio2a. determine using paulings rules the like coordination number for
For a logarithmic stress strain curve and find the strength coefficient and strain hardening exponent. Determine the modulus of elasticity. Determine the toughness.
The analysis of a mass basis of an ideal gas mixture at 50 F, 25 lbf/in2. is 60% CO2, 25% SO2, and 15% N2. The analysis in terms of mole fractions. Determine: The apparent molecular weight of the mixture. The partial pressure of each component in lbf..
a refrigerator is situated in an insulated room it has a 2-hp motor that drives a compressor. over a 30 minute period
water in 50 liter rigid container is initially at 500 kpa and 350 degree c. as the result of heat transfer the water
determine the power of a pump if 2000 kgmin of water is compressed from 100 kpa to 1 mpa. the water density can be
atmospheric air at 98 kpa and 30degc flows into an air conditioning system with a volume flow rate of 2 m3min. to
given that the instantaneous voltage across a capacitor isvc401-e-tcrvoltswhen being chargerd by a 40 volt dc supply
the two blocks in the figureoscillate on a frictionless surface with a period of 1.7 s. the upper block just begins to
water at 50 degrees farheneit and 50 psia is heated in a chamber by mixing it with saturated water vapor at 50 psia. if
consider a rankine cycle with a single regenerative feed-water heater. the steam enters the turbine at 30 bar 400c and
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